Total solar eclipse – Corona, August 12, 2026

I’ll describe the trip to León in a separate article. So here I’ll focus exclusively on the image.

The final version of the image is an HDR image composed of 7 individual exposures. The exposure series is shown in the table.

I processed the base HDR image using a rotational gradient technique. For this, I used Siril (for the Larson-Sekanina filter) and Affinity Photo.

I additionally applied high-pass filters (8px, 16px, and 32px) to it.

Using layer techniques, masks, filters, and other basic functions, I then created the final image.

High resolution on Astrobin:

Session details

Telescope	Baader Apo 95 CaF2 – Travel Companion
Corrector	Baader M68 Field Flattener
Effective focal length	590 mm
Camera	Canon EOS R
Filters	Baader AstroSolar OD 3.8
Mount	WarpAstron WD-20P Berlebach UNI18 ASTRO
Date of capture	2026-08-12
Exposure (lights)	SC: 1/250 s Baader AstroSolar OD 3.8: 1/125 s Baader AstroSolar OD 3.8: 1/60 s Baader AstroSolar OD 3.8: 1/30 s Baader AstroSolar OD 3.8: 1/15 s Baader AstroSolar OD 3.8: 1/8 s Baader AstroSolar OD 3.8: 1/4 s
Calibration frames	FLATS, BIAS
Sensitivity	ISO 400
Capture setup	Rollei 28115
Processing date	2026-08-19
Software stack	Affinity
Location	León, Spain
Focal ratio	f/6,2
Image scale	1,87 ″/px
Field of view	209,4 × 139,6 ′